Valve



C.H.DUNCAN oct. 1s, 1927.

VALVE Original Filed Sept. 27. 1921 Jag. f.

. fn venian .J4/idr Patented Oct. 18, 1927.

UNITED STATES PATENT oFFl-CE.

CHARLES H. DUNCAN, OF ERIE, PENNSYLVANIA, ASSIGNOR OF ONE-THIRD TO FRANK C.- RICHARDSON AND-ONETHIRD TO WILLIAM-F.' JOHNSON, BOTH OF ERIE; PENN- SYLVANIA.

VALVE.

Application led September 27, 1921, Serial No. 503,522.- Renewed August 13, 1926.

The invention is particularly designed as a basin cock and in the drawings is so exemplified. The valve is formed with a body which can be readily machined and the valve head and seat are removable so that the valve may be kept in order indefinitely. The valve is operated through a cam which is so shaped as to provide a self-closing valve and the valve maybe locked in open position `with. very little alteration 1n the general construction of the valve. Other details of the invention will appear fromV the specification and claims.

Theinvention is illustrated in the accompanying drawings as follows l.

Fig. 1k shows a side elevation of the valve.

Fig. 2 a central vertical section through the valve. t

Fig. 3 a section on the line 3 3 inFig. 2.

Fig. 4 a section on the line 4-4 in Fig. 3.

Fig. 5 a plan view of the index plate.

Fig. 6 a detail view of the valve stem.

1 marks the valve body. This is provided with a screw-threaded sleeve or shank 2 by means of which it may be attached to a basin. The valve body is provided with a shoulder 3 on which is carried a removable seat preferably of soft material. A packing 5 is screwed back of the seat clamping the seat on the shoulder, the packing 5 and seat having a stem opening therethrough.

The valve head 6 is preferably in the forni of a fiat sheet metal disc and is secured to a stem 7 by a screw 8. The stem 7 is bifurcated at its .upper end and has the yroller 9 arranged between the arms of the forked portion, the roller being mounted on a screw 10 extending through the arms of the forked portion of the stem. The upper ends of these arms are bifurcated at 11 and a transverse shaft 12 extends between the arms of the forked portion 1l. A cam 13 is mounted on the shaft between the arms of the firstmentioned fork and operates upon the roller 9, the eccentric being secured by a screw 14. The shaft extends into a closed bearing 15 at one end of the body and through an open bearing 16 at the opposite -end of the body. The bearing 16 is surrounded by an annular projection 17 which extends into an annular cavity 18 in the handle 19, the handle being arranged on the end of the shaft 12. A packing is arranged in the cavity and thus forms a seal for the outer end of the open bearing. A sleeve 20 is arranged on kthe shaft and is adapted to lock the shaft against longitudinal movement. i

A spring 21 is .arranged in the shank 2 and rests on va shoulder 22 insaid shank extending upwardly engaging thedisc or head 6. permitting the passage of fluid through it.

The `top of the valve is closed bya plate 23 'on which is arranged an index 24 and the index and closure are securedy in placeV gasket 24a is arjections 26 for centering or guiding it as.

it is opened. y ,I

By using a round handle it would be impossible to lock the valve open as it is commonly done with a self-closing faucet.

What I claim as new is 1. In a valve, the combination of a body having a shoulder; a soft .seat resting on the shoulder; a backing securing the seat in place; a sheet metal disc forming a head operating on the seat; and a stem extending through the seat for operating the head.

2. In a valve, the combination of a body having a shoulder; a soft seat resting on the shoulder; a backing securing the seat in place; a sheet metal disc forming a head operating on the seat; a stem extending through the seat for operating the head; and guide projections on the head.

3. In a valve, the combination of a body having a seat therein; a head operating on the seat; a stem extending from the head and through the seat, said stem being bifurcated and the arms of the forked portion being slotted; a transverse shaft extending through the slots in the arms of the forked portion of the stem; and means on the shaft between the arms operating the stem, said means acting on the arms to guidethe stern against defiection in one direction and the The spring is preferably afcoil spring shaft operating on the Walls of the slots to guide theshaf-t against deflection in another'direetion. n

4. In a valve, the combination of a body having a seat therein; a head operating on the Seat;` a stem extending from the head and through the seat; saidstem being bifurcated and the arms of the forked portion being slotted; a transverse shaft extending through the slots in the arms of the forked portion of the stern; and means on the shaft between the arms operating the stem comf` prising arcam, said lCam engaging the arms and, guiding the stem as to deflection in one direction and the shaft engaging the Walls of the slots for guiding it against deflection in another direction.

Y 5. In a valve, the combination of a body having a seat therein; a head operatin on "e seat; a stem extending from the ead and' through the seat, said stem. beine'` bifurcated; a roller between the arms of Y forked portion ofthe stem; a transverse shaft; and a cam on .the shaft operatingon the."rier,v said arms being bifurcated and extending each side of the transverse shaft.

6; In vava1ve,the combination of a body having a seat; a head operating on the seat;

thej

-and means for sealingtheouter end of said open bearing comprising a pmi/action on the body surrounding said outer end of the open bearing and a groove in an `enlargement on the shaft for receiving saidV projection.

7 .Y In a valve, the ,combination of-a body y having a seat; a head'operatinv on the seat;

a stemV` extending from the hea" and .through the seat; a transverse shaft operatin on the stem; a closed bearing at" one si e of the shaft at the opposite si e "0f lthe means forV sealing the outer end of said open bearing comprising a projectionon the body surrounding said outerend of the open bearing and a groove in an enlargementon the lshaft for receiving said rojectiomand means for ioclking the sha againstaxial` movement, l

"In testimony whereof I have hereunto set my hand. i u i the bodyfor the shaft; ano enbearingofor CHARLES DUNCAN.V 

